A stethoscope is acoustic medical equipment that is used for listening to the internal sounds in the human body. Typically it is made of a small disc shaped resonator and two tubes connected to the ear pieces. Mainly it is used to listen to lung and heart sounds by placing the disc against the chest.

1. What are the Different types of Stethoscopes used in
Medical Practices today?

2. Introduction
 A stethoscope is acoustic medical equipment that is used for
listening to the internal sounds in the human body.
 Typically it is made of a small disc shaped resonator and two
tubes connected to the ear pieces.
 Mainly it is used to listen to lung and heart sounds by placing the
disc against the chest. It can also be used to listen to the sounds
from the intestine and arteries and veins.
 When used in combination with a sphygmomanometer, it is used
for measurement of blood pressure.

3. Stethoscopes Types
Acoustic
Acoustic stethoscopes are the most common kinds
and are familiar to most people. They operate on the
transmission of sound from the chest piece. Air filled
hollow tubes to the ear pieces.
Electronic
An electronic stethoscope overcomes the short comings
of the acoustic one by electronically amplifying the
sound levels.
These types of equipment hence require the conversion
of sound waves to electronic signals which are later
amplified and processed to make them optimal for
listening.

4. Recording
Some stethoscopes use a direct audio output that can
be used with external recording device – such as a
laptop. In this way you can also compare the current
recording with a previously recorded signal and
improve your diagnostics.
Fetal
Fetal stethoscope is an acoustic stethoscope that is
used to listen to the sounds of the fetus. It is used to
diagnose any abnormalities in pregnant women.
Doppler
This device is used to measure the Doppler effect of
ultrasound waves reflected from the various organs
of the body.
Motion is detected by the change in frequency. It can
be used in dealing with moving objects such as heart
beats.

5. Conclusion
Stethoscopes have become indispensible parts of medical practices. They are
the first instruments used for over 90% of the checkups!
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6. Thank You
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